278 COLE 



TANYSTYLUM INTERMEDIUM sp. nov. 

 Plate xxi, figs. 7-9 ; plate xxn, figs. 1-7 ; plate xxm, figs. 1-3. 



Type. ^ and ?, University of California, No. 19,510, San Diego, 

 California. 



Trunk broad, segmentation not evident ; the anterior border with the 

 outer corners each produced into a prominent tubercle which bears a 

 spine. Lateral processes not so long as width of body, wedge-shaped and 

 closely crowded, the outline of their outer borders, together with the 

 anterior border of the trunk, making a complete circle ; first, second, and 

 third pairs with a dorsal tubercle near the distal end, shorter and rounded 

 in the female, longer, more pointed, and terminated by a short bristle in 

 the male. 



Caudal segment moderate, reaching to about the middle of the second 

 coxal joint of the fourth pair of legs ; rather narrow, about half as broad 

 as basal joint of leg ; diameter somewhat larger distally than proximally 

 as seen from above ; directed obliquely upward at less than 45 ; smooth, 

 apex rounded. 



Eye tubercle moderate, rather thick, blunt; situated at the extreme 

 anterior end of the first trunk segment and directed forward at about 

 the same angle that the caudal segment projects backward. Eyes rather 

 large, dark ; posterior pair apparently the larger. 



Proboscis pyriform, being widest a third of its length from the base 

 and tapering to a more or less truncated tip ; usually directed somewhat 

 downward ; about as long as trunk from its anterior border to the distal 

 end of the fourth pair of lateral processes. In side view nearly straight 

 on ventral side ; dorsal side strongly convex. 



Chelifori 2-jointed, very short, about one fourth as long as proboscis; 

 first joint about twice as long as broad, slightly curved, with a small 

 tubercle and a short spine near the distal end ; second joint very small, 

 rounded, divided into two parts by a groove, showing the former 

 presence of chelae. The second joint also bears a short spine. 



Palpi 7-jointed, rather stout, slightly overreaching the proboscis (by the 

 terminal joint). First and third joints short;/. 2 and /4 longer, /. 2 

 longer than 7.4 ; jj.$, 6, and 7 successively smaller. These 3 joints with 

 a considerable number of short bristles or hairs ; other joints with a few 

 scattered ones, j.z having a somewhat stronger one on its outer distal 

 corner. 



Oviger of female slender, about equal in length to the palp. First 3 

 joints short and of about the same length ; jj.\ and 5 longest ; the sue- 



